A French/Silicon Valley start-up has introduced a multiplatform, 3D high-definition voice conferencing platform which alleviates many of the audio quality issues that plague most unified communications systems.

The telco, which used to be a mobile player before it sold O2 to Telefónica in 2005, will take part in the upcoming 4G spectrum auction. It is quite likely, though, that it wants the airwaves to provide a wireless alternative to fixed-line broadband.

BT is likely to enjoy lighter controls on the amount it can charge for its leased lines in London, under proposals revealed by Ofcom on Monday.Leased lines offer high-end fibre connectivity as a retail product for business customers, and also as a wholesale product for smaller telcos that resell fixed and mobile broadband services.